Possible Thunderstorms, Heat Index Values in the 100s This Week

It could be a stormy and hot week. Scattered thunderstorms are possible Monday through Wednesday and again on Friday and Saturday.

Meanwhile, heat index values could reach between 100 and 105 degrees during the afternoon hours on Tuesday through Saturday.

Here is a more detailed look at the forecast for the Chicago area this week:

• Rest of today: Partly cloudy. Highs in the lower 80s inland... But only in the upper 70s near the lake. Northeast winds 10 to 15 mph.
• Sunday night: Partly cloudy. Lows in the mid 60s in the suburbs... But in the upper 60s downtown. Northeast winds 5 to 10 mph.
• Monday: Partly cloudy. Highs in the mid 80s. East winds 5 to 10 mph.
• Monday Night: Partly cloudy with a 50 percent chance of showers and thunderstorms. Lows around 70. East winds 5 to 10 mph in the evening becoming southeast after midnight.
• Tuesday: Mostly cloudy with a 50 percent chance of showers and thunderstorms. Highs in the mid 80s. South winds 10 to 15 mph.
• Tuesday Night: Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the lower 70s.
• Wednesday: Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s inland...but only around 80 near the lake.
• Wednesday Night: Partly cloudy in the evening then clearing. Lows in the lower 70s.
• Thursday And Thursday Night: Partly cloudy with a 30 percent chance of showers and thunderstorms. Highs around 90. Lows in the lower 70s.
• Friday: Partly sunny with a 40 percent chance of showers and thunderstorms. Highs in the mid 80s inland...but only in the lower 80s near the lake.
• Friday Night And Saturday: Partly cloudy. Lows in the upper 60s. Highs in the mid 80s inland...but only in the lower 80s near the lake.